plat: imx: Add i.MX8MQ basic support

i.MX8MQ is new SOC of NXP's i.MX8M family based on
A53. It can provide industry-leading audio, voice
and video processing for applications that scale
from consumer home audio to industrial building
automation and mobile computers

this patchset add the basic supoort to boot up
the 4 X A53. more feature will be added later.

Signed-off-by: Bai Ping <ping.bai@nxp.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/plat/imx/imx8m/include/gpc.h b/plat/imx/imx8m/include/gpc.h
new file mode 100644
index 00000000..6fdf6ad6
--- /dev/null
+++ b/plat/imx/imx8m/include/gpc.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef IMX8M_GPC_H
+#define IMX8M_GPC_H
+
+#define LPCR_A53_BSC			0x0
+#define LPCR_A53_BSC2			0x108
+#define LPCR_A53_AD			0x4
+#define LPCR_M4				0x8
+#define SLPCR				0x14
+#define MST_CPU_MAPPING			0x18
+#define MLPCR				0x20
+#define PGC_ACK_SEL_A53			0x24
+#define IMR1_CORE0_A53			0x30
+#define IMR1_CORE1_A53			0x40
+#define IMR1_CORE2_A53			0x1C0
+#define IMR1_CORE3_A53			0x1D0
+#define IMR1_CORE0_M4			0x50
+#define SLT0_CFG			0xB0
+#define GPC_PU_PWRHSK			0x1FC
+#define PGC_CPU_0_1_MAPPING		0xEC
+#define CPU_PGC_UP_TRG			0xF0
+#define PU_PGC_UP_TRG			0xF8
+#define CPU_PGC_DN_TRG			0xFC
+#define PU_PGC_DN_TRG			0x104
+#define A53_CORE0_PGC			0x800
+#define A53_PLAT_PGC			0x900
+#define PGC_SCU_TIMING			0x910
+
+#define MASK_DSM_TRIGGER_A53		BIT(31)
+#define IRQ_SRC_A53_WUP			BIT(30)
+#define IRQ_SRC_C1			BIT(29)
+#define IRQ_SRC_C0			BIT(28)
+#define IRQ_SRC_C3			BIT(23)
+#define IRQ_SRC_C2			BIT(22)
+#define CPU_CLOCK_ON_LPM		BIT(14)
+#define MASTER0_LPM_HSK			BIT(6)
+
+#define L2PGE				BIT(31)
+#define EN_L2_WFI_PDN			BIT(5)
+#define EN_PLAT_PDN			BIT(4)
+
+#define SLPCR_EN_DSM			BIT(31)
+#define SLPCR_RBC_EN			BIT(30)
+#define SLPCR_A53_FASTWUP_STOP_MODE	BIT(17)
+#define SLPCR_A53_FASTWUP_WAIT_MODE	BIT(16)
+#define SLPCR_VSTBY			BIT(2)
+#define SLPCR_SBYOS			BIT(1)
+#define SLPCR_BYPASS_PMIC_READY		BIT(0)
+#define SLPCR_RBC_COUNT_SHIFT		24
+
+#define A53_DUMMY_PDN_ACK		BIT(15)
+#define A53_DUMMY_PUP_ACK		BIT(31)
+#define A53_PLAT_PDN_ACK		BIT(2)
+#define A53_PLAT_PUP_ACK		BIT(18)
+
+#define SLT_PLAT_PDN			BIT(8)
+#define SLT_PLAT_PUP			BIT(9)
+
+/* helper macro */
+#define A53_LPM_MASK	U(0xF)
+#define A53_LPM_WAIT	U(0x5)
+#define A53_LPM_STOP	U(0xA)
+
+#define DSM_MODE_MASK	BIT(31)
+
+#define A53_CORE_WUP_SRC(core_id)	(1 << ((core_id) < 2 ? 28 + (core_id) : 22 + (core_id) - 2))
+#define COREx_PGC_PCR(core_id)		(0x800 + (core_id) * 0x40)
+#define COREx_WFI_PDN(core_id)		(1 << ((core_id) < 2 ? (core_id) * 2 : ((core_id) - 2) * 2 + 16))
+#define COREx_IRQ_WUP(core_id)		((core_id) < 2 ? (1 << ((core_id) * 2 + 8)) : (1 << ((core_id) * 2 + 20)))
+#define COREx_LPM_PUP(core_id)		((core_id) < 2 ? (1 << ((core_id) * 2 + 9)) : (1 << ((core_id) * 2 + 21)))
+#define SLTx_CFG(n)			((SLT0_CFG + ((n) * 4)))
+#define SLT_COREx_PUP(core_id)		(0x2 << ((core_id) * 2))
+
+/* function declare */
+void imx_gpc_init(void);
+void imx_set_cpu_secure_entry(unsigned int core_index, uintptr_t sec_entrypoint);
+void imx_set_cpu_pwr_off(unsigned int core_index);
+void imx_set_cpu_pwr_on(unsigned int core_index);
+void imx_set_cpu_lpm(unsigned int core_index, bool pdn);
+void imx_set_cluster_standby(bool retention);
+void imx_set_cluster_powerdown(unsigned int last_core, uint8_t power_state);
+void imx_set_sys_lpm(bool retention);
+void imx_set_rbc_count(void);
+void imx_clear_rbc_count(void);
+
+#endif /*IMX8M_GPC_H */